GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2008 🢒 Astra 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Crankshaft Replacement

Removal Procedure

    Object Number: 1937078 Size: SH
  1. Remove the engine. Refer to Engine Replacement .
  2. Remove the manual transmission from the engine. Refer to Transmission Replacement .
  3. Remove the automatic transmission from the engine with the torque converter. Refer to Transmission Replacement .
  4. Remove the pressure plate and clutch disc. Refer to Clutch, Pressure Plate, and Pilot Bearing Replacement .
  5. Remove the flywheel. Refer to Engine Flywheel Replacement .
  6. Remove the drive belt. Refer to Drive Belt Replacement .
  7. Remove the oil pan. Refer to Oil Pan Replacement .
  8. Remove the oil pump module.

    9.    Important: Note the different screw lengths.

    • Remove the 8 bolts (1, 2).
    • Remove the gasket.

    Object Number: 1948709 Size: SH
  9. Identify all the con-rod bearing caps (1).

    10. Object Number: 1937053 Size: SH
  10. Remove the con-rod bearing caps 1 and 4 (1).

    11. Remove the 4 bolts.

  11. Turn the crankshaft through 180 degrees.

    12. Object Number: 1937048 Size: SH
  12. Remove the con-rod bearing caps 2 and 3 (1).

    13. Remove the 4 bolts.

  13. Identify the crankshaft bearing caps.

    14. Object Number: 1937120 Size: SH
  14. Remove the crankshaft bearing cap (1).

    15. Remove the 10 bolts.

  15. Remove the crankshaft.
  16. Remove the crankshaft bearing clips.

Installation Procedure

    Object Number: 1935559 Size: SH

    Important: Inspect the installation position.

  1. Install the crankshaft bearing clips.

    2. Oil bearing clips.

  2. Install the crankshaft.

    3. Important: Inspect the installation position.

  3. Install the crankshaft bearing caps 1-4.
    4. • Oil bearing clips.
    • Install the 8 bolts.

    Notice: Refer to Fastener Notice in the Preface section.

    Important: Inspect the installation position.

  4. Install the crankshaft bearing cap.
    5. • Apply the adhesive sealing compound (black) to the grooves of the rear crankshaft bearing cap.
    • Install the 2 bolts.
  5. Tighten the crankshaft bearing cap.

    6. Use new bolts.

    Tighten
    Tighten the 10 bolts to 50 N·m (37 lb ft) plus 45 degrees plus 15 degrees.

    Important: Inspect the installation position.

  6. Install the con-rod bearing caps 2 and 3.
    7. • Oil bearing clips.
    • Renew the bolts.

    Tighten
    Tighten the 4 bolts to 35 N·m (26 lb ft) plus 45 degrees plus 15 degrees.

  7. Turn the crankshaft through 180 degrees.

    8. Important: Inspect the installation position.

  8. Install the con-rod bearing caps 1 and 4.
    9. • Oil bearing clips.
    • Install new the bolts.

    Tighten
    Tighten the 4 bolts to 35 N·m (26 lb ft) plus 45 degrees plus 15 degrees.

  9. Replace the crankshaft seal ring (rear). Refer to Crankshaft Rear Oil Seal Replacement .

    10. Important: Note the different screw lengths.

  10. Install the oil pump module.

    11. Replace the gasket.

    Tighten
    Tighten the 8 bolts to 20 N·m (15 lb ft).

  11. Seal Ring - Front Crankshaft, Replace. Refer to Crankshaft Front Oil Seal Replacement .
  12. Install the oil pan. Refer to Oil Pan Replacement
  13. Install the flywheel. Refer to Engine Flywheel Replacement .
  14. Install the pressure plate and clutch disk. Refer to Clutch, Pressure Plate, and Pilot Bearing Replacement .
  15. Replace the drive belt drive gear.
  16. Install the drive belt. Refer to Drive Belt Replacement .
  17. Install the automatic transmission in engine with torque converter. Refer to Transmission Replacement .
  18. Install the manual transmission. Refer to Transmission Replacement .
  19. Install the engine. Refer to Engine Replacement .